Study on the aerodynamic performance and rivulet characteristics of a compressor cascade with rain ingestion

IF 5.8 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-10-07 DOI:10.1016/j.ast.2025.111030

Yonghao Yu , Qionglei Hu , Kim Tiow Ooi , Qun Zheng , Mingcong Luo

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引用次数: 0

Abstract

Rain ingestion significantly impacts axial compressor performance by modifying blade-surface water distribution and local aerodynamic loads. This study employs a linear-cascade two-phase flow test rig combined with high-speed imaging and a computer-vision algorithm to quantify rivulet and water-film dynamics under varying droplet sizes, water air ratio (WAR), cascade geometries, and attack angles. Results indicate that higher WAR and larger droplets increase total pressure loss, deviation-angle fluctuations, and early tendency of flow separation. Blade geometry amplifies these effects, with positive attack angle producing fewer but higher rivulets, and negative attack angle generating more numerous yet lower rivulets. Nonlinear correlations between rivulet height and local static pressure highlight the complex multiphase–aerodynamic interaction. These insights offer quantitative guidance for blade design and performance mitigation under wet-air conditions.

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吸雨式压气机叶栅气动性能及流场特性研究

雨水的摄入通过改变叶片表面水分分布和局部气动载荷显著影响轴向压气机的性能。本研究采用线性叶栅两相流试验台，结合高速成像和计算机视觉算法，量化不同液滴大小、水气比（WAR）、叶栅几何形状和攻角下的溪流和水膜动力学。结果表明，WAR越高，液滴越大，总压损失越大，偏角波动越大，流动分离倾向越早。叶片的几何形状放大了这些效应，正攻角产生较少但较高的小流，负攻角产生较多但较低的小流。水流高度与局部静压之间的非线性关系凸显了复杂的多相气动相互作用。这些见解为湿空气条件下的叶片设计和性能降低提供了定量指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.